.nav{display:flex;gap:1rem;padding:1rem 0}.nav a{text-decoration:none;color:#333;font-weight:500}.nav a.active{color:#1d4ed8}body{margin:0;font-family:Inter,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;background-color:#f9fafb;color:#111827}.layout{max-width:1024px;margin:0 auto;padding:1rem}.content{background:#fff;border-radius:.75rem;padding:1.5rem;box-shadow:0 1px 2px #0f172a14}button{padding:.5rem 1rem;border-radius:.375rem;border:none;background-color:#1d4ed8;color:#fff;cursor:pointer}button.secondary{background-color:#6b7280}.loading{padding:2rem;text-align:center}